Italian Tomato Sauce

Ingredients

• - 2 tablespoons olive oil - 1 onion
• diced - ¼ cup chopped celery - 1 small garlic clove
• minced - 1 pound ground beef - 40 ounces Italian-style stewed tomatoes - 2 (6 ounce) cans tomato paste - 1 (8 ounce) package sliced mushrooms
• or to taste - ½ cup grated Parmesan cheese
• or to taste - ¼ cup parsley - 1 ½ teaspoons salt - 1 teaspoon white sugar - ¼ teaspoon ground nutmeg - ½ teaspoon dried oregano - ⅛ teaspoon ground black pepper - ¼ teaspoon baking soda
• or to taste